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 * General Public License Version 2 only ("GPL") or the Common
 * Development and Distribution License("CDDL") (collectively, the
 * "License"). You may not use this file except in compliance with the
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 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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 * particular file as subject to the "Classpath" exception as provided
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package kiwi.core.action.webservice.thesaurusManagement;

import java.io.IOException;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.LinkedList;

import javax.inject.Scope;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.ext.MessageBodyWriter;
import javax.ws.rs.ext.Provider;

import kiwi.core.api.importexport.ExportService;
import kiwi.core.api.triplestore.TripleStore;
import kiwi.core.model.content.ContentItem;

@Name("contentItemListWriter") 
@Scope(ScopeType.APPLICATION)
@Provider
@Produces("application/rdf+xml")
public class ContentItemListWriter implements MessageBodyWriter<LinkedList<ContentItem>> {

	@Logger
	private static Log log;
	
	public void writeTo(LinkedList<ContentItem> st, Class<?> type, Type genericType,
			Annotation[] annotations, MediaType mediaType,
			MultivaluedMap<String, Object> httpHeaders,
			java.io.OutputStream entityStream) throws IOException,
			WebApplicationException {

		TripleStore   tripleStore = (TripleStore) Component.getInstance("tripleStore");
		ExportService      ies = (ExportService) Component.getInstance("kiwi.core.exportService"); 		


		//log.info("Name "+s.getPreferredLabel());
		
		if(tripleStore == null){
			log.info("Triplestore not initialized");
		}
		
//		if(st.size() > 0) {
			ies.exportItems(st, "application/rdf+xml",entityStream);
//		} else {
//			String s = new String("<?xml version=\"1.0\"?><rdf:RDF></rdf:RDF>");
//			entityStream.write(s.getBytes());
//		}
		
	   // tripleStore.exportData(entityStream,st.getResource(),KiWiDataFormat.RDFXML);

	}

	public long getSize(LinkedList<ContentItem> st, Class<?> type, Type genericType,
			Annotation[] annotations, MediaType mediatype) {
		return -1;
	}

	public boolean isWriteable(Class<?> type, Type genericType,
		Annotation[] annotations, MediaType mediaType) {		
		return LinkedList.class == type;
	}
}
